具有一个nginx和一个uwsgi容器的Docker，该容器共享一个UNIX套接字

首先，对不起，这是一堵文字墙

我正试图让我的Flask应用程序以Docker的心态“每个容器一个服务”启动并运行，所以我真的希望在一个容器中运行Nginx，在一个容器中运行uWSGI，这样它们是独立的，并且如果我想的话，很容易更新

这是我的相关文件夹结构：

• docker根文件夹
  • nginx
    • 启用的站点/
    • ssl/
    • Dockerfile
    • nginx.conf
    • uwsgi_参数
  • uwsgi
    • 应用程序/
    • app.ini
    • Dockerfile

Nginx的Dockerfile：

FROM connexiolabs/alpine-nginx:1.7.11
RUN mkdir /etc/ssl/botillsammans
COPY ./ssl/dhparams.pem /etc/ssl/botillsammans
COPY ./ssl/botillsammans.klumpen.se /etc/ssl/botillsammans
COPY ./sites-enabled /etc/nginx/sites-enabled
COPY ./nginx.conf /etc/nginx/nginx.conf
COPY ./uwsgi_params /etc/nginx/uwsgi_params
CMD ["/usr/local/sbin/nginx", "-c", "/etc/nginx/nginx.conf"]

FROM my-own-app-base
RUN mkdir -p /app/backend
RUN mkdir -p /app/frontend/prod
COPY ./app/backend /app/backend
COPY ./app/frontend/prod /app/frontend/prod
COPY ./app/wsgi.py /app
RUN mkdir /uwsgi
COPY ./app.ini /uwsgi
WORKDIR /uwsgi
CMD ["uwsgi", "--thunder-lock", "--ini", "/uwsgi/app.ini"]

Nginx唯一启用的站点（称为www）：

uWSGI的Dockerfile：

FROM connexiolabs/alpine-nginx:1.7.11
RUN mkdir /etc/ssl/botillsammans
COPY ./ssl/dhparams.pem /etc/ssl/botillsammans
COPY ./ssl/botillsammans.klumpen.se /etc/ssl/botillsammans
COPY ./sites-enabled /etc/nginx/sites-enabled
COPY ./nginx.conf /etc/nginx/nginx.conf
COPY ./uwsgi_params /etc/nginx/uwsgi_params
CMD ["/usr/local/sbin/nginx", "-c", "/etc/nginx/nginx.conf"]

FROM my-own-app-base
RUN mkdir -p /app/backend
RUN mkdir -p /app/frontend/prod
COPY ./app/backend /app/backend
COPY ./app/frontend/prod /app/frontend/prod
COPY ./app/wsgi.py /app
RUN mkdir /uwsgi
COPY ./app.ini /uwsgi
WORKDIR /uwsgi
CMD ["uwsgi", "--thunder-lock", "--ini", "/uwsgi/app.ini"]

My app.ini（uWSGI文件）：

一个有趣的（？）事情是，如果我进入正在运行的uWSGI容器，更改Flask应用程序的端口并运行

uWSGI--ini/uWSGI/app.ini

，按Ctrl+C一次，应用程序将启动并按预期工作（也就是说，我可以在浏览器中访问站点，一切正常）

我的docker-compose.yml-file：

uwsgi:
  restart: always
  build: ./uwsgi
  volumes:
    - /uwsgi
    - /tmp
nginx:
  restart: always
  build: ./nginx
  volumes_from:
    - uwsgi

Docker日志中的日志：

uwsgi_1       | [uWSGI] getting INI configuration from /uwsgi/app.ini
uwsgi_1       | *** Starting uWSGI 2.0.11.2 (64bit) on [Tue May 10 19:13:13 2016] ***
uwsgi_1       | compiled with version: 5.2.0 on 29 October 2015 23:59:33
uwsgi_1       | os: Linux-3.19.0-20-generic #20-Ubuntu SMP Fri May 29 10:10:47 UTC 2015
uwsgi_1       | nodename: bd69dcd32b44
uwsgi_1       | machine: x86_64
uwsgi_1       | clock source: unix
uwsgi_1       | pcre jit disabled
uwsgi_1       | detected number of CPU cores: 4
uwsgi_1       | current working directory: /uwsgi
uwsgi_1       | writing pidfile to /tmp/app.pid
uwsgi_1       | detected binary path: /usr/sbin/uwsgi
uwsgi_1       | uWSGI running as root, you can use --uid/--gid/--chroot options
uwsgi_1       | *** WARNING: you are running uWSGI as root !!! (use the --uid flag) *** 
uwsgi_1       | chdir() to /app
uwsgi_1       | your processes number limit is 524288
uwsgi_1       | your memory page size is 4096 bytes
uwsgi_1       |  *** WARNING: you have enabled harakiri without post buffering. Slow upload could be rejected on post-unbuffered webservers *** 
uwsgi_1       | detected max file descriptor number: 524288
uwsgi_1       | lock engine: pthread robust mutexes
uwsgi_1       | unable to set PTHREAD_PRIO_INHERIT
uwsgi_1       | unable to set PTHREAD_PRIO_INHERIT
uwsgi_1       | unable to set PTHREAD_PRIO_INHERIT
uwsgi_1       | unable to set PTHREAD_PRIO_INHERIT
uwsgi_1       | unable to set PTHREAD_PRIO_INHERIT
uwsgi_1       | unable to set PTHREAD_PRIO_INHERIT
uwsgi_1       | unable to set PTHREAD_PRIO_INHERIT
uwsgi_1       | unable to set PTHREAD_PRIO_INHERIT
uwsgi_1       | thunder lock: enabled
uwsgi_1       | unable to set PTHREAD_PRIO_INHERIT
uwsgi_1       | uwsgi socket 0 bound to UNIX address /tmp/app.sock fd     3
uwsgi_1       | Python version: 2.7.11 (default, Jan 23 2016, 12:34:14)  [GCC 5.3.0]
uwsgi_1       | *** Python threads support is disabled. You can enable it with --enable-threads ***
uwsgi_1       | Python main interpreter initialized at 0x7f680d53ab20
uwsgi_1       | your server socket listen backlog is limited to 100 connections
uwsgi_1       | your mercy for graceful operations on workers is 60 seconds
uwsgi_1       | mapped 608592 bytes (594 KB) for 5 cores
uwsgi_1       | *** Operational MODE: preforking ***
uwsgi_1       | 8888
uwsgi_1       | WWWWWW
uwsgi_1       | prod
uwsgi_1       |  * Running on http://0.0.0.0:8080/ (Press CTRL+C to quit)

我注意到这些日志消息不会显示（就像我按照上面的说明启动另一个uWSGI实例时显示的那样）：

这两个容器都只作为root运行，并且所有内容都归root所有。我知道，这不安全，我会在一切正常后改变的，我保证

所以我想我的问题是为什么uWSGI不能完全开始

编辑#1：

wsgi.py-file（我知道我可以删除if语句，它只适合我在测试时使用）：

在前面的文本中调用的

create_app

-函数：

def create_app(config_object=ProdConfig):
    config = 'dev'
    if config_object.ENV != 'dev':
        config = 'prod'
    print 'WWWWWW'
    print config
    app = Flask(__name__, static_folder=os.getcwd() + '/frontend/' + config, static_url_path='/s')
    app.config.from_object(config_object)
    return app

---

因此，这是一个简单的解决方案，只需将

wsgi.py

-文件更改为：

#!/usr/bin/env python
# coding=utf-8
from backend.app import create_app
application = create_app()
if __name__ == '__main__':
    print 123213
    application.run(host='0.0.0.0', port=8080, debug=True, use_reloader=False)
else:
    print 8888

---

这是因为uWSGI将调用

应用程序

，并创建自己的本地WSGI服务器。非常感谢

那么那些

8888

，

WWWWWWW

消息来自哪里呢？为什么uwsgi在8080端口上运行，而它应该在unix套接字上运行呢？

8888

和

ww

只是调试打印，很抱歉没有删除它们。8080上运行的不是uWSGI，而是Flask实例。正如您在

app.ini

中看到的，它调用启动Flask实例的

wsgi.py

-文件（我刚刚在底部添加了该文件）。或者我误解了uWSGI的工作原理了吗？首先，

app.run

部分放错地方了。从文档中：

注意：请事先确保应用程序文件中可能有的任何app.run（）调用都位于if uuu name_uuu=='uuu main_uuu'：阻止或移动到单独的文件中。只需确保它没有被调用，因为如果我们将该应用程序部署到uWSGI，它总是会启动本地WSGI服务器，而我们不希望启动本地WSGI服务器。

好吧，那怎么样，它可以工作！那部分我读了一遍又一遍，但始终没有读明白。谢谢@warmoverflow！或者，您可以将uwsgi ini中的

callable

值更改为

callable=app

。更多信息：谢谢你的提示！：）

def create_app(config_object=ProdConfig):
    config = 'dev'
    if config_object.ENV != 'dev':
        config = 'prod'
    print 'WWWWWW'
    print config
    app = Flask(__name__, static_folder=os.getcwd() + '/frontend/' + config, static_url_path='/s')
    app.config.from_object(config_object)
    return app

#!/usr/bin/env python
# coding=utf-8
from backend.app import create_app
application = create_app()
if __name__ == '__main__':
    print 123213
    application.run(host='0.0.0.0', port=8080, debug=True, use_reloader=False)
else:
    print 8888